Sturev,
Watermom asked me to look into this.

Read this thread:
http://www.poolforum.com/pf2/showthread.php?t=9453

then if you go to the Amato website the kit for $46.25 is what you want. The reagent you will run out of first is the CYA reagent so get a pint bottle of that, listed for around $10 I think. You may also want to get more FAAS-DPD titrating reagent R-0872 for the chloring test. Think this should cover you for a while. The SPS site seems to have a better selection of replacement reagent sizes but doesn't matter where you get them.
Al